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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 227 · 40 questions
TalentJR

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

NameDateTime takenScore ___ / 40
  1. 1.67 + 5 =
  2. 2.59 children stand in rows of 5. How many full rows can they make?
  3. 3.84 − 29 =
  4. 4.86 + 5 =
  5. 5.73 × 4 =
  6. 6.Double 17 =
  7. 7.You start your homework at 8:10 and finish at 9:35. How many minutes did you work?
  8. 8.56 − 27 =
  9. 9.48 × 3 =
  10. 10.35 + 9 =
  11. 11.11² =
  12. 12.60 − 31 =
  13. 13.25% of ₹130 =
  14. 14.87 + ? = 100
  15. 15.12² =
  16. 16.34 × 8 =
  17. 17.47 + 42 =
  18. 18.23 + 22 =
  19. 19.What is the remainder when 28 is divided by 6?
  20. 20.57 × 3 =
  21. 21.A film starts at 3:30 and ends at 5:00. How many minutes long is the film?
  22. 22.Best estimate of 91 × 16? (a) 1800 (b) 180 (c) 18000
  23. 23.25 + 19 =
  24. 24.Best estimate of 24 × 74? (a) 14000 (b) 1400 (c) 140
  25. 25.77 + 48 =
  26. 26.73 + ? = 100
  27. 27.74 − 25 =
  28. 28.Double 91 =
  29. 29.25% of ₹480 =
  30. 30.1006 − 992 =
  31. 31.78 + 38 =
  32. 32.75 ÷ 3 =
  33. 33.37 + 6 =
  34. 34.613 − 99 =
  35. 35.88 + 6 =
  36. 36.212 ÷ 4 =
  37. 37.77 + 72 =
  38. 38.22 + 37 =
  39. 39.96 − 43 =
  40. 40.5 + ? = 10

Answer key

  1. 72
  2. 11
  3. 55
  4. 91
  5. 292
  6. 34
  7. 85
  8. 29
  9. 144
  10. 44
  11. 121
  12. 29
  13. 32.5
  14. 13
  15. 144
  16. 272
  17. 89
  18. 45
  19. 4
  20. 171
  21. 90
  22. 1800
  23. 44
  24. 1400
  25. 125
  26. 27
  27. 49
  28. 182
  29. 120
  30. 14
  31. 116
  32. 25
  33. 43
  34. 514
  35. 94
  36. 53
  37. 149
  38. 59
  39. 53
  40. 5

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